From 078ed46ec2c065e7bea869737ddb8d8644a723cb Mon Sep 17 00:00:00 2001
From: Mathias Wagner <germannewsmaker@gmail.com>
Date: Thu, 3 Aug 2023 23:36:34 +0200
Subject: [PATCH] Created the validation.ts controller

---
 src/controller/validation.ts | 43 ++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 src/controller/validation.ts

diff --git a/src/controller/validation.ts b/src/controller/validation.ts
new file mode 100644
index 0000000..5f264f6
--- /dev/null
+++ b/src/controller/validation.ts
@@ -0,0 +1,43 @@
+import { Project } from "@models/Project";
+import { encryptClearField } from "@utils/decryption";
+import { License } from "@models/License";
+import { mapLicense } from "@controller/license";
+import { Group } from "@models/Group";
+import { Permission } from "@models/Permission";
+
+enum ResponseStatus {
+    VALID = "VALID",
+    EXPIRED = "EXPIRED",
+    INVALID = "INVALID",
+    INVALID_KEY = "INVALID_KEY",
+    MAX_USES_REACHED = "MAX_USES_REACHED"
+}
+
+export const validateLicense = async (validationKey: string, licenseKey: string) => {
+    const project = await Project.findOne({ validationKey: encryptClearField(validationKey) });
+    if (project === null) return { status: ResponseStatus.INVALID_KEY, message: "The provided validation key is invalid" };
+
+    const license = await License.findOne({ projectId: encryptClearField(String(project.id)), key: encryptClearField(licenseKey) });
+    if (license === null) return { status: ResponseStatus.INVALID, message: "The provided license key is invalid" };
+
+    if (license.expirationDate && license.expirationDate < new Date())
+        return { status: ResponseStatus.EXPIRED, message: "The provided license key has expired" };
+
+    if (license.maxUses && license.maxUses !== -1 && license.maxUses <= license.currentUses)
+        return { status: ResponseStatus.MAX_USES_REACHED, message: "The provided license key has reached its maximum uses" };
+
+    const licenseData = await mapLicense(String(project.id), license, true);
+
+    if (license.groups) {
+        const groups = await Group.find({ _id: { $in: license.groups }});
+
+        for (const group of groups) {
+            const permissions = await Permission.find({ _id: { $in: group.permissions }});
+            licenseData.permissions.push(...permissions.map(permission => permission.permission));
+        }
+    }
+
+    await License.updateOne({ _id: license.id }, { currentUses: license.currentUses + 1 });
+
+    return { status: ResponseStatus.VALID, license: licenseData };
+}
\ No newline at end of file